focal (3) std::shared_ptr.3cxx.gz

NAME

       std::shared_ptr< _Tp > - A smart pointer with reference-counted copy semantics.

SYNOPSIS

       Inherits std::__shared_ptr< _Tp, _Lp >.

   Public Types
       using element_type = typename __shared_ptr< _Tp >::element_type

   Public Member Functions
       constexpr shared_ptr () noexcept
           Construct an empty shared_ptr.
       template<typename _Yp , typename  = _Constructible<_Yp*>> shared_ptr (_Yp *__p)
           Construct a shared_ptr that owns the pointer __p.
       template<typename _Yp , typename _Deleter , typename  = _Constructible<_Yp*, _Deleter>> shared_ptr (_Yp
           *__p, _Deleter __d)
           Construct a shared_ptr that owns the pointer __p and the deleter __d.
       template<typename _Yp , typename _Deleter , typename _Alloc , typename  = _Constructible<_Yp*, _Deleter,
           _Alloc>> shared_ptr (_Yp *__p, _Deleter __d, _Alloc __a)
           Construct a shared_ptr that owns the pointer __p and the deleter __d.
       shared_ptr (const shared_ptr &) noexcept=default
       template<typename _Yp , typename  = _Constructible<const shared_ptr<_Yp>&>> shared_ptr (const shared_ptr<
           _Yp > &__r) noexcept
           If __r is empty, constructs an empty shared_ptr; otherwise construct a shared_ptr that shares
           ownership with __r.
       template<typename _Yp > shared_ptr (const shared_ptr< _Yp > &__r, element_type *__p) noexcept
           Constructs a shared_ptr instance that stores __p and shares ownership with __r.
       template<typename _Yp , typename  = _Constructible<const weak_ptr<_Yp>&>> shared_ptr (const weak_ptr< _Yp
           > &__r)
           Constructs a shared_ptr that shares ownership with __r and stores a copy of the pointer stored in
           __r.
       template<typename _Deleter > shared_ptr (nullptr_t __p, _Deleter __d)
           Construct a shared_ptr that owns a null pointer and the deleter __d.
       template<typename _Deleter , typename _Alloc > shared_ptr (nullptr_t __p, _Deleter __d, _Alloc __a)
           Construct a shared_ptr that owns a null pointer and the deleter __d.
       constexpr shared_ptr (nullptr_t) noexcept
           Construct an empty shared_ptr.
       shared_ptr (shared_ptr &&__r) noexcept
           Move-constructs a shared_ptr instance from __r.
       template<typename _Yp , typename  = _Constructible<shared_ptr<_Yp>>> shared_ptr (shared_ptr< _Yp > &&__r)
           noexcept
           Move-constructs a shared_ptr instance from __r.
       template<typename _Tp1 , typename > shared_ptr (std::auto_ptr< _Tp1 > &&__r)
       template<typename _Yp , typename _Del , typename  = _Constructible<unique_ptr<_Yp, _Del>>> shared_ptr
           (unique_ptr< _Yp, _Del > &&__r)
       element_type * get () const noexcept
       operator bool () const
       shared_ptr & operator= (const shared_ptr &) noexcept=default
       template<typename _Yp > _Assignable< const shared_ptr< _Yp > & > operator= (const shared_ptr< _Yp > &__r)
           noexcept
       shared_ptr & operator= (shared_ptr &&__r) noexcept
       template<class _Yp > _Assignable< shared_ptr< _Yp > > operator= (shared_ptr< _Yp > &&__r) noexcept
       template<typename _Yp , typename _Del > _Assignable< unique_ptr< _Yp, _Del > > operator= (unique_ptr<
           _Yp, _Del > &&__r)
       template<typename _Tp1 > bool owner_before (__shared_ptr< _Tp1, _Lp > const &__rhs) const noexcept
       template<typename _Tp1 > bool owner_before (__weak_ptr< _Tp1, _Lp > const &__rhs) const noexcept
       void reset () noexcept
       template<typename _Yp > _SafeConv< _Yp > reset (_Yp *__p)
       template<typename _Yp , typename _Deleter > _SafeConv< _Yp > reset (_Yp *__p, _Deleter __d)
       template<typename _Yp , typename _Deleter , typename _Alloc > _SafeConv< _Yp > reset (_Yp *__p, _Deleter
           __d, _Alloc __a)
       void swap (__shared_ptr< _Tp, _Lp > &__other) noexcept
       bool unique () const noexcept
       long use_count () const noexcept

   Friends
       template<typename _Yp , typename _Alloc , typename... _Args> shared_ptr< _Yp > allocate_shared (const
           _Alloc &__a, _Args &&... __args)
           Create an object that is owned by a shared_ptr.
       class weak_ptr< _Tp >

Detailed Description

   template<typename _Tp>
       class std::shared_ptr< _Tp >" A smart pointer with reference-counted copy semantics.

       The object pointed to is deleted when the last shared_ptr pointing to it is destroyed or reset.

       Definition at line 103 of file bits/shared_ptr.h.

Author

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